CN113856894A - Purification process of stone powder - Google Patents
Purification process of stone powder Download PDFInfo
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- CN113856894A CN113856894A CN202110992255.0A CN202110992255A CN113856894A CN 113856894 A CN113856894 A CN 113856894A CN 202110992255 A CN202110992255 A CN 202110992255A CN 113856894 A CN113856894 A CN 113856894A
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- Prior art keywords
- slurry
- meshes
- stone powder
- concentrate
- separated
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- 239000000843 powder Substances 0.000 title claims abstract description 71
- 239000004575 stone Substances 0.000 title claims abstract description 62
- 238000000746 purification Methods 0.000 title abstract description 11
- 239000002002 slurry Substances 0.000 claims abstract description 85
- 239000012141 concentrate Substances 0.000 claims abstract description 63
- 239000002245 particle Substances 0.000 claims abstract description 29
- 239000007788 liquid Substances 0.000 claims abstract description 28
- 239000006148 magnetic separator Substances 0.000 claims abstract description 28
- 239000000919 ceramic Substances 0.000 claims abstract description 17
- 230000003068 static effect Effects 0.000 claims abstract description 14
- 239000007787 solid Substances 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000012216 screening Methods 0.000 claims abstract description 7
- 238000005406 washing Methods 0.000 claims abstract description 5
- 239000002562 thickening agent Substances 0.000 claims description 36
- 239000012535 impurity Substances 0.000 claims description 17
- 239000002689 soil Substances 0.000 claims description 16
- 238000007599 discharging Methods 0.000 claims description 12
- 239000012528 membrane Substances 0.000 claims description 8
- 238000002844 melting Methods 0.000 claims description 7
- 230000008018 melting Effects 0.000 claims description 7
- 238000005303 weighing Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 230000018044 dehydration Effects 0.000 claims description 3
- 238000006297 dehydration reaction Methods 0.000 claims description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 23
- 239000011707 mineral Substances 0.000 description 6
- 239000002994 raw material Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- -1 chemical engineering Substances 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000006082 mold release agent Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B9/00—General arrangement of separating plant, e.g. flow sheets
Landscapes
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention relates to a purification process of stone powder, wherein solid particle stone powder and liquid stone powder are sequentially conveyed to a shaftless roller slurry screen slurry, a screening machine, a primary static separator, a primary wet-type strong magnetic plate type magnetic separator, a secondary vertical ring high gradient magnetic separator, a tertiary vertical ring high gradient magnetic separator, a primary cyclone, an electromagnetic slurry magnetic separator, a secondary cyclone, a tertiary cyclone and a secondary static separator, concentrate slurry below 30-2000 meshes is classified, water washing above 80 meshes is dehydrated and discharged through a spiral classifier, water washing below 80 meshes is concentrated through a concentrator and then is dehydrated and discharged through a ceramic filter and a high-efficiency energy-saving diaphragm filter press.
Description
Technical Field
The invention relates to the technical field of mineral powder purification, in particular to a process for purifying stone powder.
Background
Mineral resources are non-renewable, and high-quality mineral resources are very scarce. With the continuous expansion of the application field of inorganic minerals, the demand of high-quality inorganic mineral powder is increasing, so that the improvement of the quality of low-quality inorganic mineral raw materials through purification is of great significance. At present, the application fields and industries of inorganic mineral powder are numerous, such as the inorganic mineral powder can be added into some raw materials to increase the chemical stability, prolong the service life and increase the special properties and effects of the surface of the inorganic mineral powder; the purified inorganic mineral powder can increase the plasticity and tensile strength of thermoplastic and thermosetting resins and reduce thermal expansion; inorganic minerals can also be used in the rubber industry as lubricants and mold release agents. The purified high-quality inorganic mineral stone powder has high whiteness, soft quality, easy dispersion and suspension in water, good plasticity, high caking property, excellent electrical insulation property, good acid resistance, good fire resistance and other physical and chemical properties. Therefore, the stone powder becomes a necessary mineral raw material for dozens of industries such as paper making, ceramics, rubber, chemical engineering, coating, glass, waterproof materials, national defense and the like.
In order to meet the requirement of various industries and fields on the purity of inorganic mineral powder, the purification treatment of the inorganic mineral powder is required, so that the method is an effective means for improving the use efficiency of the inorganic mineral powder, and is an effective method for saving mineral resources, improving the use rate and reducing waste.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a purification process of stone powder, which realizes graded purification treatment of the stone powder by using low-quality inorganic mineral raw materials, can effectively improve the environmental management effect and reduce waste.
In order to achieve the purpose, the invention adopts the technical scheme that:
a purification process of stone powder comprises the following steps:
firstly, separating supplied stone powder into solid particle stone powder and liquid stone powder, wherein the solid stone powder is fed by a chain plate feeder, and is conveyed to a shaftless roller slurry melting screen for slurry melting to form ore slurry through a belt conveyor and a belt weighing instrument; liquid stone powder is conveyed from the liquid stone powder pool to a shaftless roller slurry screen by a pump to form ore slurry, and stone blocks and soil in the stone powder are separated;
secondly, separating ore pulp liquid with the particle size of more than 30 meshes by a screening machine, washing the ore pulp liquid with the particle size of more than 30 meshes by water, and dehydrating and discharging the ore pulp liquid by a spiral classifier;
thirdly, separating impurities such as soil from ore pulp with the particle size of less than 30 meshes through a primary static separator, and enabling the impurities such as soil to enter a tailing thickener;
fourthly, separating the ore pulp from which the impurities are separated by a primary wet strong magnetic plate type magnetic separator to form concentrate pulp, feeding tailings into a tailing thickener, and dehydrating and discharging the tailings through a tailing ceramic filter;
fifthly, the concentrate slurry is sequentially separated through a second-level vertical ring high-gradient magnetic separator and a third-level vertical ring high-gradient magnetic separator, tailings enter a tailing thickener, and are discharged through a tailing ceramic filter in a dehydration mode;
the sixth step, the concentrate slurry in the fifth step is separated by a primary swirler and then separated by an electromagnetic slurry magnetic separator, more than 80 meshes of concentrate slurry is dewatered and discharged by a spiral classifier after being washed, tailings enter a tailing thickener and are dewatered and discharged by a tailing ceramic filter;
seventhly, separating through a secondary cyclone and a tertiary cyclone, separating the concentrate slurry below 80 meshes through a secondary static separator, and dehydrating and discharging the concentrate slurry below 80-600 meshes through a thickener and a concentrate ceramic filter in sequence;
the concentrate slurry with the particle size below 80 meshes is separated through a secondary cyclone and a secondary cyclone in sequence, and the concentrate with the particle size below 600-plus-2000 meshes is dewatered and discharged through a thickener and a primary high-efficiency energy-saving membrane filter press in sequence;
the concentrate slurry below 80 meshes is separated by a secondary cyclone and a secondary cyclone, and the concentrate slurry below 2000 meshes is dewatered and discharged by a thickener and a secondary high-efficiency energy-saving membrane filter press in turn.
The invention has the beneficial effects that:
the method can meet the requirement of various industries and fields on the purity of the inorganic mineral powder, can purify the inorganic mineral powder, improves the whiteness of the powder and the purity of the powder, is an effective means for improving the use efficiency of the inorganic mineral powder, realizes graded purification treatment of the powder by utilizing low-quality inorganic mineral raw materials, saves mineral resources, effectively improves the environmental management effect and reduces waste.
Detailed Description
A purification process of stone powder comprises the following steps:
firstly, separating supplied stone powder into solid particle stone powder and liquid stone powder, wherein the solid stone powder is fed by a chain plate feeder, and is conveyed to a shaftless roller slurry melting screen for slurry melting to form ore slurry through a belt conveyor and a belt weighing instrument; liquid stone powder is conveyed from the liquid stone powder pool to a shaftless roller slurry screen by a pump to form ore slurry, and stone blocks and soil in the stone powder are separated;
secondly, separating ore pulp liquid with the particle size of more than 30 meshes by a screening machine, washing the ore pulp liquid with the particle size of more than 30 meshes by water, and dehydrating and discharging the ore pulp liquid by a spiral classifier;
thirdly, separating impurities such as soil from ore pulp with the particle size of less than 30 meshes through a primary static separator, and enabling the impurities such as soil to enter a tailing thickener;
fourthly, separating the ore pulp from which the impurities are separated by a primary wet strong magnetic plate type magnetic separator to form concentrate pulp, feeding tailings into a tailing thickener, and dehydrating and discharging the tailings through a tailing ceramic filter;
fifthly, the concentrate slurry is sequentially separated through a second-level vertical ring high-gradient magnetic separator and a third-level vertical ring high-gradient magnetic separator, tailings enter a tailing thickener, and are discharged through a tailing ceramic filter in a dehydration mode;
the sixth step, the concentrate slurry in the fifth step is separated by a primary swirler and then separated by an electromagnetic slurry magnetic separator, more than 80 meshes of concentrate slurry is dewatered and discharged by a spiral classifier after being washed, tailings enter a tailing thickener and are dewatered and discharged by a tailing ceramic filter;
seventhly, separating through a secondary cyclone and a tertiary cyclone, separating the concentrate slurry below 80 meshes through a secondary static separator, and dehydrating and discharging the concentrate slurry below 80-600 meshes through a thickener and a concentrate ceramic filter in sequence;
the concentrate slurry with the particle size below 80 meshes is separated through a secondary cyclone and a secondary cyclone in sequence, and the concentrate with the particle size below 600-plus-2000 meshes is dewatered and discharged through a thickener and a primary high-efficiency energy-saving membrane filter press in sequence;
the concentrate slurry below 80 meshes is separated by a secondary cyclone and a secondary cyclone, and the concentrate slurry below 2000 meshes is dewatered and discharged by a thickener and a secondary high-efficiency energy-saving membrane filter press in turn.
Example 1
The supplied stone powder is divided into solid particle stone powder and liquid stone powder, wherein the solid stone powder is fed by a chain plate type feeder and is conveyed to a shaftless roller slurry screen by a belt conveyor and a belt weighing instrument to form ore slurry; liquid stone powder is conveyed from a liquid stone powder pool to a shaftless roller slurry screen by a pump to form ore slurry, stone blocks and soil in the stone powder are separated, the ore slurry with the particle size of more than 30 meshes is classified by a screening machine, and the ore slurry with the particle size of more than 30 meshes is washed by water and is dewatered and discharged by a spiral classifier. And (4) separating impurities such as soil from the ore pulp through a primary static separator, and enabling the impurities such as soil to enter a tailing thickener. The ore pulp is separated by a primary wet strong magnetic plate type magnetic separator to form concentrate pulp, tailings enter a tailing thickener, the concentrate pulp is separated by a secondary vertical ring high gradient magnetic separator and a tertiary vertical ring high gradient magnetic separator to form concentrate pulp, the tailings enter the tailing thickener, the concentrate pulp is separated by a primary swirler to be more than 80 meshes, washed and dewatered by a spiral classifier, and then discharged. And (2) separating the ore concentrate slurry below 80 meshes by an electromagnetic slurry magnetic separator to form ore concentrate slurry, feeding the tailings into a tailing thickener, separating the ore concentrate slurry by a secondary cyclone and a tertiary cyclone, separating the ore concentrate slurry with 80-600 meshes by a secondary static separator, and dewatering and discharging the ore concentrate slurry with 80-600 meshes by the thickener and the ore concentrate ceramic filter sequentially.
Example 2
The supplied stone powder is divided into solid particle stone powder and liquid stone powder, wherein the solid stone powder is fed by a chain plate type feeder and is conveyed to a shaftless roller slurry screen by a belt conveyor and a belt weighing instrument to form ore slurry; liquid stone powder is conveyed from a liquid stone powder pool to a shaftless roller slurry screen by a pump to form ore slurry, stone blocks and impurities in the stone powder are separated, the ore slurry with the particle size of more than 30 meshes is classified by a screening machine, and the ore slurry with the particle size of more than 30 meshes is washed by water and is dewatered by a spiral classifier to be discharged. And (4) separating impurities such as soil from the ore pulp through a primary static separator, and enabling the impurities such as soil to enter a tailing thickener. The ore pulp is separated by a primary wet strong magnetic plate type magnetic separator to form concentrate pulp, tailings enter a tailing thickener, the concentrate pulp is separated by a secondary vertical ring high gradient magnetic separator and a tertiary vertical ring high gradient magnetic separator to form concentrate pulp, the tailings enter the tailing thickener, the concentrate pulp is separated by a primary swirler, and more than 80 meshes of the concentrate pulp are washed by water and are dewatered by a spiral classifier to be discharged. The ore concentrate slurry below 80 meshes is separated by an electromagnetic slurry magnetic separator to form ore concentrate slurry, tailings enter a tailing thickener, the ore concentrate slurry is separated by a secondary cyclone separator and a tertiary cyclone separator to separate the ore concentrate slurry below 80 meshes by a secondary static separator, the ore concentrate slurry with 600 meshes and 2000 meshes is dehydrated and discharged by the thickener and a primary high-efficiency energy-saving membrane filter press sequentially, and the tailings are dehydrated and discharged by a tailing ceramic filter after being concentrated.
Example 3
The supplied stone powder is divided into solid particle stone powder and liquid stone powder, wherein the solid stone powder is fed by a chain plate type feeder and is conveyed to a shaftless roller slurry screen by a belt conveyor and a belt weighing instrument to form ore slurry; liquid stone powder is conveyed from a liquid stone powder pool to a shaftless roller slurry screen by a pump to form ore slurry, stone blocks and impurities in the stone powder are separated, the ore slurry with the particle size of more than 30 meshes is classified by a screening machine, and the ore slurry with the particle size of more than 30 meshes is washed by water and is dewatered by a spiral classifier to be discharged. And (4) separating impurities such as soil from the ore pulp through a primary static separator, and enabling the impurities such as soil to enter a tailing thickener. The ore pulp is separated by a primary wet strong magnetic plate type magnetic separator to form concentrate pulp, tailings enter a tailing thickener, the concentrate pulp is separated by a secondary vertical ring high gradient magnetic separator and a tertiary vertical ring high gradient magnetic separator to form concentrate pulp, the tailings enter the tailing thickener, the concentrate pulp is separated by a primary swirler, the ore pulp with the particle size of more than 80 meshes is washed by water and is dewatered and discharged by a spiral classifier. And (2) separating the ore concentrate slurry below 80 meshes by an electromagnetic slurry magnetic separator to form ore concentrate slurry, feeding tailings into a tailing thickener, separating the ore concentrate slurry by a secondary cyclone and a tertiary cyclone, separating the ore concentrate slurry below 2000 meshes by a secondary static separator, and dewatering and discharging the ore concentrate slurry below 2000 meshes sequentially by the thickener and a secondary high-efficiency energy-saving membrane filter press. And concentrating the tailings, and then dehydrating and discharging the tailings through a tailing ceramic filter.
In the above embodiment, the separated water enters the circulating tank for recycling, so that water resources are saved. After the stone powder passes through the shaftless roller slurry melting sieve, slurry completely moves in the pipeline under the action of the slurry pump, so that the pollution of dust to the environment is avoided.
Claims (1)
1. The process for purifying stone powder is characterized by comprising the following steps of:
firstly, separating supplied stone powder into solid particle stone powder and liquid stone powder, wherein the solid stone powder is fed by a chain plate feeder, and is conveyed to a shaftless roller slurry melting screen for slurry melting to form ore slurry through a belt conveyor and a belt weighing instrument; liquid stone powder is conveyed from the liquid stone powder pool to a shaftless roller slurry screen by a pump to form ore slurry, and stone blocks and soil in the stone powder are separated;
secondly, separating ore pulp liquid with the particle size of more than 30 meshes by a screening machine, washing the ore pulp liquid with the particle size of more than 30 meshes by water, and dehydrating and discharging the ore pulp liquid by a spiral classifier;
thirdly, separating impurities such as soil from ore pulp with the particle size of less than 30 meshes through a primary static separator, and enabling the impurities such as soil to enter a tailing thickener;
fourthly, separating the ore pulp from which the impurities are separated by a primary wet strong magnetic plate type magnetic separator to form concentrate pulp, feeding tailings into a tailing thickener, and dehydrating and discharging the tailings through a tailing ceramic filter;
fifthly, the concentrate slurry is sequentially separated through a second-level vertical ring high-gradient magnetic separator and a third-level vertical ring high-gradient magnetic separator, tailings enter a tailing thickener, and are discharged through a tailing ceramic filter in a dehydration mode;
the sixth step, the concentrate slurry in the fifth step is separated by a primary swirler and then separated by an electromagnetic slurry magnetic separator, more than 80 meshes of concentrate slurry is dewatered and discharged by a spiral classifier after being washed, tailings enter a tailing thickener and are dewatered and discharged by a tailing ceramic filter;
seventhly, separating through a secondary cyclone and a tertiary cyclone, separating the concentrate slurry below 80 meshes through a secondary static separator, and dehydrating and discharging the concentrate slurry below 80-600 meshes through a thickener and a concentrate ceramic filter in sequence;
the concentrate slurry with the particle size below 80 meshes is separated through a secondary cyclone and a secondary cyclone in sequence, and the concentrate with the particle size below 600-plus-2000 meshes is dewatered and discharged through a thickener and a primary high-efficiency energy-saving membrane filter press in sequence;
the concentrate slurry below 80 meshes is separated by a secondary cyclone and a secondary cyclone, and the concentrate slurry below 2000 meshes is dewatered and discharged by a thickener and a secondary high-efficiency energy-saving membrane filter press in turn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110992255.0A CN113856894A (en) | 2021-08-27 | 2021-08-27 | Purification process of stone powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110992255.0A CN113856894A (en) | 2021-08-27 | 2021-08-27 | Purification process of stone powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113856894A true CN113856894A (en) | 2021-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110992255.0A Pending CN113856894A (en) | 2021-08-27 | 2021-08-27 | Purification process of stone powder |
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| Country | Link |
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| CN (1) | CN113856894A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117548209A (en) * | 2024-01-09 | 2024-02-13 | 泉州晟麟石粉综合利用有限公司 | Stone powder recovery system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1004570A (en) * | 1962-08-03 | 1965-09-15 | English Clays Lovering Pochin | A method of producing a white-firing kaolinitic clay |
| CN104084291A (en) * | 2014-06-13 | 2014-10-08 | 赣州金环磁选设备有限公司 | Method for efficiently preparing feldspar glazes for ceramics |
| CN105665133A (en) * | 2016-01-24 | 2016-06-15 | 江西理工大学 | Comprehensive recycling method of stone tailing resources |
| CN109513521A (en) * | 2019-01-25 | 2019-03-26 | 王玉亮 | A kind of ore-dressing technique recycling iron from asbestos tailings |
| CN210434134U (en) * | 2019-06-25 | 2020-05-01 | 百沃星联(上海)环保科技有限公司 | Static separation device for suspended matters and sludge in waste water treated by kitchen waste processor |
-
2021
- 2021-08-27 CN CN202110992255.0A patent/CN113856894A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1004570A (en) * | 1962-08-03 | 1965-09-15 | English Clays Lovering Pochin | A method of producing a white-firing kaolinitic clay |
| CN104084291A (en) * | 2014-06-13 | 2014-10-08 | 赣州金环磁选设备有限公司 | Method for efficiently preparing feldspar glazes for ceramics |
| CN105665133A (en) * | 2016-01-24 | 2016-06-15 | 江西理工大学 | Comprehensive recycling method of stone tailing resources |
| CN109513521A (en) * | 2019-01-25 | 2019-03-26 | 王玉亮 | A kind of ore-dressing technique recycling iron from asbestos tailings |
| CN210434134U (en) * | 2019-06-25 | 2020-05-01 | 百沃星联(上海)环保科技有限公司 | Static separation device for suspended matters and sludge in waste water treated by kitchen waste processor |
Non-Patent Citations (1)
| Title |
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| 赵昱东;: "我国铁矿石分选新设备的研制和应用", 矿山机械, no. 18, 20 September 2009 (2009-09-20) * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117548209A (en) * | 2024-01-09 | 2024-02-13 | 泉州晟麟石粉综合利用有限公司 | Stone powder recovery system |
| CN117548209B (en) * | 2024-01-09 | 2024-03-22 | 泉州晟麟石粉综合利用有限公司 | Stone powder recovery system |
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